Mark, on the first problem I recommend tinfoil on your head to keep them
from reading your thoughts while hey are sneaking up on you.
On the second, could it be valve float?
Mark W
----- Original Message -----
From: "Mark J. Bradakis" <mjb@autox.team.net>
To: <fot@autox.team.net>
Sent: Tuesday, May 04, 2004 1:48 AM
Subject: Odd ignition problem?
> Even though there is no IVR race this weekend, there is still a chance
> we'll have an event next month, and there's a few autocrosses I'd like
> to attend in the interim.
>
> But I'm having an odd problem. Well, two, actually, but one you folks
> can't do anything about. I bought a new chair for my home office this
> evening, and it has a much higher back than my old one. I keep spinning
> around thinking there's someone behind me ;-)
>
> At the last IVR race before I melted the rear axle pinion and bearings,
> I was having some trouble with Killer. The car would fire right up, idle
> smoothly, run great and pull strongly up to about 5600, maybe 5700 rpm.
> Then it would start cutting out smoothly, like it does if hitting the rev
> limiter on the Crane HI-6 box. This would happen sitting in the paddock
> in neutral, or pulling hard on course. It must be an ignition problem,
> and not a fuel delivery issue, or the cutout point would be different
> for idle and load, right?
>
> At first I figured that the rapscallion who broke into the shop over
> the winter and replaced my driver's suit with an identical copy that
> was an inch or two smaller in the waist was responsible for turning
> down the rev limiter. But such is not the case.
>
> Last week I got to messing with it some. The setup is a Crane HI-6
> ignition box triggered from the points in a Mallory dual point
distributor.
> We're talking a mostly stock Spitfire 1500 cc motor here, stock head,
stock
> cam, 9:1 CR, basically an SCCA Solo II FSP legal engine, with dual Weber
40
> DCOEs choked down to within an inch of their life (actually 28 mm) and
your
> generic 4 into 1 header. Timing at 12 degrees BTDC, point dwell within
> spec.
>
> With Crane HI-6 ignition box, Crane coil, Mallory dual point distributor,
> car runs fine up to 5700 rpm, then starts cutting out. When rev limiter
> set to revs below 5700, motor cuts out at setting.
>
> With Lucas coil hooked to ignition, Crane box completely out of the
picture
> car runs fine up to 5700 rpm, then starts cutting out. It isn't the
> Crane ignition box. With Crane coil wired direct instead of Lucas it
> runs fine to 5700, then starts cutting out. It behaves the same with
> either coil, wired directly to power or through the HI-6.
>
> With new plugs, new points, new wires, new cap, new rotor and the Lucas
coil
> still in place car runs fine up to 5700 rpm, then starts cutting out.
Same
> with Crane coil.
>
> Lucas coil removed, Crane box wired back in, car runs fine up to 5700 rpm,
> then starts cutting out.
>
>
> So where in the fuel system should I start looking for the problem?
>
> mjb.
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